A particle supplying apparatus includes a cylinder part (21) having a plurality of recessed portion rows (213) arranged along a cylinder rotation axis (R1), each of the recessed portion rows being recessed portions (212) arrayed at a fixed pitch in a circumferential direction in a cylinder outer surface (211). Above the cylinder part is a particle filling opening through which particles of an absorbent material is successively applied to the plurality of recessed portions. Part of the cylinder outer surface is covered by a cover part that extends from the particle filling opening to a lower portion of the cylinder part in a rotation direction, and particles are successively emitted from the plurality of recessed portions in the vicinity of the front edge of the cover part in the rotation direction.